Product comparison · 2 power supply units

Chieftec CPS-400S power supply unit vs Chieftec CPS-650S power supply unit

Key differences

Total power
- CPS-400S power supply unit:400 W
- CPS-650S power supply unit:650 W
Combined power (+3.3V)
- CPS-400S power supply unit:103 W
- CPS-650S power supply unit:120 W
Combined power (+5V)
- CPS-400S power supply unit:103 W
- CPS-650S power supply unit:120 W
Max output current (+3.3V)
- CPS-400S power supply unit:21 A
- CPS-650S power supply unit:22 A
Max output current (+12V1)
- CPS-400S power supply unit:30 A
- CPS-650S power supply unit:48.75 A
Max output current (+5V)
- CPS-400S power supply unit:15 A
- CPS-650S power supply unit:22 A
Number of SATA power connectors
- CPS-400S power supply unit:4
- CPS-650S power supply unit:6

Differences highlightedShow differences only

Comparison of CPS-400S, CPS-650S
37 specifications	A Chieftec CPS-400S power supply unit Model CPS-400S View product	B Chieftec CPS-650S power supply unit Model CPS-650S View product
Power6 differ
Total powerDiffers	400 W	650 W
Combined power (+3.3V)Differs	103 W	120 W
Combined power (+5V)Differs	103 W	120 W
Max output current (+3.3V)Differs	21 A	22 A
Max output current (+12V1)Differs	30 A	48.75 A
Max output current (+5V)Differs	15 A	22 A
Ports & interfaces1 differ
Number of SATA power connectorsDiffers	4	6
PCI Express power connectors (6-pin)Known for one	1	Unknown — not stated by the source
CPU P4 connector (4-pin)Known for one	1	Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Known for one	Unknown — not stated by the source	2
CPU power connector (4+4 pin)Known for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.